Question

what number should be added subtracted from 7/2 so as to get 2/3​

Answer 1

$\huge\cal\red{\underbrace{Solution:}} \\ \\ \text{Let the other no. be x, then} \\ \\ \Longrightarrow\textbf{When x is added:} \\ \\ \leadsto\frac{7}{2}\,+\,x\,=\,\frac{2}{3} \\ \\ \leadsto\,=\,\frac{2}{3} - \frac{7}{2} \\ \\ \mapsto\text{LCM of 3 and 2 = 6} \\ \\ \leadsto x\,=\,\frac{4}{6} - \frac{21}{6} \\ \\ \leadsto x\,=\,\frac{4 - 21}{6} \\ \\ \Rightarrow\,=\,\frac{-17}{6} \\ \\ \Longrightarrow\textbf{When x is subtracted:} \\ \\ \leadsto\frac{7}{2}\,-\,x\,=\,\frac{2}{3} \\ \\ \leadsto x\,=\,\frac{2}{3} + \frac{7}{2} \\ \\ \mapsto\text{LCM of 3 and 2 = 6} \\ \\ \leadsto x\,=\,\frac{4}{6} + \frac{21}{6} \\ \\ \leadsto x\,=\,\frac{4 + 21}{6} \\ \\ \Rightarrow\,=\,\frac{25}{6} \\ \\ \textit\red{Hope it will help you...}$